CN201240808Y - J type forklift gantry section steel - Google Patents
J type forklift gantry section steel Download PDFInfo
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- CN201240808Y CN201240808Y CNU2008201095884U CN200820109588U CN201240808Y CN 201240808 Y CN201240808 Y CN 201240808Y CN U2008201095884 U CNU2008201095884 U CN U2008201095884U CN 200820109588 U CN200820109588 U CN 200820109588U CN 201240808 Y CN201240808 Y CN 201240808Y
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 230000007704 transition Effects 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000005755 formation reaction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000002950 deficient Effects 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The utility model relates to shaped steel, in particular to a gantry mounting shaped steel specially used by a J shaped fork lift. The gantry mounting shaped steel comprises a web plate, flange girths and reinforced bars; two flange girths are connected at the two ends of the web plate, a channel steel shape is formed by the web plate and the two flange girths; the reinforced bars vertical to the web plate are arranged at the other side of the web plate opposite to the flange girths, the reinforced bars is close to the flange girths at one side; an inner bevel is arranged at the position of two internal angles connected by the web plate and the flange girths, fillet angles are all arranged at the transition positions of the inner bevel, the web plate and the flange girths, and the fillet angle is arranged at the connecting position of the reinforced bars and the web plate. The gantry mounting shaped steel solves the problem that stress between the flange girths and the web plate and between the web plate and the reinforced bars is concentrated, thus ensuring stable running of rollers, improving the stability and service life of the fork lift, reducing the manufacturing cost and improving the using economical efficiency of the fork lift. The shaped steel is applied to manufacturing industry of the fork lifts.
Description
Technical field
The utility model belongs to a kind of shaped steel, relates in particular to a kind of gantry-shaped steel of fork truck special use.
Background technology
Fork truck is as the important equipment of logistics system, and its demand constantly increases.And as fork truck to the fork of goods get, the door frame that hoists of operation such as lifting, stacking, piling, it is again most important primary structure member, because the particularity of its position is balance weight type front fork truck particularly, door frame all is to be suspended on the drive axle of vehicle front, getting goods, promote in operation and the short-distance transport pitching, is that the centre of moment produces very big capsizing moment with the propons.Therefore reduce the portal frame system deadweight, the production material cost is reduced, its its usage economy also significantly improves simultaneously.
According to the structure construction and the principle of work of fork truck hoisting system, interior outer mast is the skeleton of carrying lift work, and its rigidity, intensity, stability are directly connected to the safety performance of car load.By force analysis, the stress of column shaped steel dangerous section mainly contains following a few part: 1. integrally bending stress, the moment of flexure effect that vertical door frame plane framework is produced by hoisting capacity and relevant deadweight; 2. local stress, the pressure load that is contacted with door frame column shaped steel edge of a wing track by the vertical roller of door frame produces; 3. constraint torsion stress, because inside and outside portal-framed structure is indeterminate framework, the column roller pressure is not the flexual center that acts on the column sectional shape, therefore produce moment of torsion, add of the constraint of door frame upper, middle and lower crossbeam, so the column after stressed produces constraint normal stress and friction stress to the door frame column; 4. outer mast also being born axle pressure, is to be produced by chain and dump ram effect.
Forklift door frame generally adopts the mode of channel-section steel and reinforced rib welding at present, and its Fabrication procedure is many, and weld easily cracks, and is bad in the junction strained condition of web and the edge of a wing and web and reinforced rib, easily produces fatigue damage, influences fork truck service life.The poor structure rigidity of door frame is unfavorable for the carrying of door frame, also is unfavorable for the guiding of roller.In addition and since door frame from great, fork truck is produced very big capsizing moment, influenced the stability and the economy of fork truck.
Summary of the invention
Of the present utility model in order to overcome above-mentioned deficiency of the prior art, design and develop a kind of J type gantry-shaped steel of forklift, solve between web and the flange plate and the problem of stress concentration between web and the reinforced rib, guarantee that roller operates steadily, reduce the deadweight of portal frame system simultaneously, reduce production costs the economy that improves its stability and use.
The utility model is achieved through the following technical solutions:
A kind of J type gantry-shaped steel of forklift, it comprises web, a pair of flange plate and reinforced rib, and the two ends of described web link to each other with two described flange plates, and the cross-sectional plane of described web and two flange plate formations is the channel-section steel shape; Described reinforced rib is vertically set on the lateral surface of described web;
Form a pair of interior angle and a pair of exterior angle respectively in the junction of described web and two flange plates; Form a pair of reinforced rib interior angle at described web and reinforced rib junction;
The angle of the interior angle of described web and two flange plate junctions is 89～91 degree, and includes filleted corner and inner bevel; The long limit of described inner bevel is positioned at described web one side, and the minor face of inner bevel is positioned at flange plate one side, and the minor face of described inner bevel is 2.5～3.6mm; The filleted corner of described web and two flange plate junctions is arranged on the transition position of described inner bevel and web and/or the transition position of inner bevel and flange plate; And described fillet radius is 5mm;
The exterior angle of described web and two flange plate junctions is a fillet, and round radius is 3～5mm;
The reinforced rib interior angle of described web and reinforced rib junction is a filleted corner, and its radius is 5mm.
In the application of the J of reality type fork truck door shaped steel, each lateral location of described web, a pair of flange plate and reinforced rib is closed and is:
(1) lateral surface of described web is parallel with the medial surface of web, and parallel with the bottom side on the described a pair of edge of a wing;
(2) lateral surface of described web is parallel and straight with described reinforced rib top side face;
(3) described reinforced rib right flank is parallel with two lateral surfaces of two flange plates;
(4) two lateral surfaces of the lateral surface of described web and described two flange plates are orthogonal, and with to add described strong muscle right flank vertical;
(5) two of described two flange plates medial surface gradients or angular error symmetry.
In concrete application, the length of described gantry-shaped steel of forklift cross-sectional plane is at 100～205mm;
Described reinforced rib is arranged near on the web outside face of a flank listrium; The thickness of the flange plate of the described reinforced rib far-end of distance is more than or equal to the thickness of the flange plate of reinforced rib near-end, and thickness difference is not more than 0.3～0.4mm.
In one embodiment, the length of described gantry-shaped steel of forklift cross-sectional plane is 148mm, and spends at 89 degree～91 at the interior angle of the junction of described web and two flange plates formation, and outer angular radius is less than 5mm;
Transition position at described inner bevel and flange plate is provided with filleted corner, and its radius is 5mm;
Angular radius is 5mm in the reinforced rib of described web and reinforced rib junction.
In another kind of embodiment, the length of described gantry-shaped steel of forklift cross-sectional plane is 160mm, and spends at 89 degree～91 at the interior angle of the junction of described web and two flange plates formation, and outer angular radius is 3～5mm;
Be provided with filleted corner at the transition position of described inner bevel and web and inner bevel and flange plate transition position, its radius is 5mm;
Angular radius is 5mm in the reinforced rib of described web and reinforced rib junction.
In concrete application, in order to guarantee the performance of gantry-shaped steel, described shaped steel material superficial hardness is 160～210; The shaped steel sinuousness is 0～1mm for every meter, and total sinuousness is 0～0.3% of a total length; The wavy camber of shaped steel is 0～1mm for every meter; The shaped steel torsion resistance is 0～0.8mm for every meter; Shaped steel surface camber, impression defective continuous length are 0～30mm, and the degree of depth is 0～0.2mm; Shaped steel cold saw cross section perpendicular degree is 0～1mm; The section sag of shaped steel, wavy camber are 0～0.18mm.
Compared with prior art, the beneficial effects of the utility model are: (1) has overcome the problem of stress concentration, guarantees that roller operates steadily; (2) after the section physical dimension generally reduced, under identical loading, safety factor did not reduce on the contrary and increases.(3) integrally bending stress and local stress numerical more are tending towards balanced, and the comprehensive equivalent stress of calculating according to theory of strength reduces, and safety factor improves.(4) the novel section edge of a wing and web adopt the transition of symmetrical oblique angle, and channel-section steel opening rigidity is increased, and distortion reduces.Simultaneously, reinforced rib and web are an integral body, have avoided because the stress concentration phenomenon that welding causes.(5) because the section web height reduces, the door frame front overhang is reduced, whole vehicle stability improves.(6) reduce productive costs, improved the service life of fork truck; (7) stability of fork truck and the economy of using have been improved.
Description of drawings
Fig. 1 is the structural representation of the cross-sectional plane of embodiment 1 of the present utility model;
Fig. 2 is the structural representation of the cross-sectional plane of embodiment 2 of the present utility model.
Content in the concrete accompanying drawing will be illustrated in conjunction with the specific embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
In the utility model, as depicted in figs. 1 and 2, comprise web 1, a pair of flange plate 2a, the filleted corner 5 of 2b, reinforced rib 3, inner bevel 4, web and flange plate junction, 5 ', the interior angle 6a of reinforced rib and web junction, the lateral surface 7 of 6b, web,, the medial surface 8 of web, flange plate medial surface 9a, the bottom side 10a of 9b, flange plate, the lateral surface 11a of 10b, flange plate, 11b, exterior angle 12a, the interior angle 13a of 12b, web and junction, the edge of a wing, the top side face 14 of 13b, reinforced rib, the right flank 15 of reinforced rib.
In embodiment shown in Figure 11,
A kind of J type gantry-shaped steel of forklift, it comprises web 1, a pair of flange plate 2a, 2b and reinforced rib 3, the two ends of described web 1 and two described flange plate 2a, 2b links to each other, described web 1 and two flange plate 2a, the cross-sectional plane that 2b constitutes is the channel-section steel shape; Described reinforced rib 3 is vertically set on the lateral surface 7 of described web;
At described web 1 and two flange plate 2a, the junction of 2b forms a pair of interior angle 13a respectively, 13b and a pair of exterior angle 12a, 12b; Form a pair of reinforced rib interior angle 6a, 6b at described web and reinforced rib junction;
The interior angle 13a of described web and two flange plate junctions, the angle of 13b is 89～91 degree, and each interior angle includes filleted corner 5,5 ' and inner bevel 4. for effective reinforcement interior angle, improve the phenomenon of interior angle place stress concentration, be provided with inner bevel 4, the long limit of described inner bevel 4 is positioned at described web 1 one sides, the minor face of inner bevel 4 is positioned at flange plate 2a, 2b one side, and the minor face of described inner bevel 4 is 2.5～3.6mm; The filleted corner 5,5 ' of described web and two flange plate junctions is arranged on transition position and/or the inner bevel 4 and flange plate 2a of described inner bevel 4 and web 1, the transition position of 2b; And described filleted corner 5,5 ' radius is 5mm;
Described web 1 and two flange plate 2a, the exterior angle 12a of 2b junction, 12b are fillet, round radius is 3～5mm; The reinforced rib interior angle 6a of described web 1 and reinforced rib 3 junctions, 6b is a filleted corner, its radius is 5mm.Like this, under same bearing capacity, can adopt thin size, save steel, and improved the service life of fork truck.
As shown in Figure 1, the length of described gantry-shaped steel of forklift cross-sectional plane is 160mm, and at described web 1 and two flange plate 2a, the interior angle 13a that the junction of 2b forms, 13b is at 89 degree～91 degree, and exterior angle 12a, 12b radius are 3～5mm;
At transition position and the inner bevel 4 and flange plate 2a of described inner bevel 4 with web 1, the 2b transition position is provided with filleted corner 5, and 5 ', its radius is 5mm; The reinforced rib interior angle 6a of described web and reinforced rib junction, the 6b radius is 5mm.
And described reinforced rib is arranged near on the web outside face of a flank listrium; The thickness of the flange plate of the described reinforced rib far-end of distance is more than or equal to the thickness of the flange plate of reinforced rib near-end, and thickness difference is not more than 0.3～0.4mm.
Each lateral location of described web, a pair of flange plate and reinforced rib is closed and is:
(1) lateral surface 7 of described web is parallel with the medial surface 8 of web, and with described a pair of flange plate 2a, the bottom side 10a of 2b, 10b is parallel;
(2) lateral surface 7 of described web is parallel and straight with described reinforced rib top side face 14;
(3) described reinforced rib right flank 15 and two flange plate 2a, two lateral surface 11a of 2b, 11b is parallel;
(4) lateral surface 7 of described web and described two flange plate 2a, two lateral surface 11a of 2b, 11b is orthogonal, and with to add described strong muscle right flank 15 vertical;
(5) two of described two flange plates medial surface 9a, 9b gradient or angular error symmetry.
As Fig. 2, in embodiment 2, the length of described gantry-shaped steel of forklift cross-sectional plane is 148mm, and at described web 1 and two flange plate 2a, the interior angle 13a that the junction of 2b forms, 13b spends at 89 degree～91, exterior angle 12a, the 12b radius is less than 5mm;
At described inner bevel 4 and flange plate 2a, the transition position of 2b is provided with filleted corner 5, and its radius is 5mm;
The reinforced rib interior angle 6a of described web and reinforced rib junction, the 6b radius is 5mm.
In order to guarantee the performance of gantry-shaped steel, described shaped steel material superficial hardness is 160～210; The shaped steel sinuousness is 0～1mm for every meter, and total sinuousness is 0～0.3% of a total length; The wavy camber of shaped steel is 0～1mm for every meter; The shaped steel torsion resistance is 0～0.8mm for every meter; Shaped steel surface camber, impression defective continuous length are 0～30mm, and the degree of depth is 0～0.2mm; Shaped steel cold saw cross section perpendicular degree is 0～1mm; The section sag of shaped steel, wavy camber are 0～0.18mm.
Claims (7)
1 one kinds of J type gantry-shaped steel of forklift, it comprises web, a pair of flange plate and reinforced rib, it is characterized in that,
The two ends of described web link to each other with two described flange plates, and the cross-sectional plane of described web and two flange plate formations is the channel-section steel shape; Described reinforced rib is vertically set on the lateral surface of described web;
Form a pair of interior angle and a pair of exterior angle respectively in the junction of described web and two flange plates; Form a pair of reinforced rib interior angle at described web and reinforced rib junction;
The angle of the interior angle of described web and two flange plate junctions is 89～91 degree, and includes filleted corner and inner bevel; The long limit of described inner bevel is positioned at described web one side, and the minor face of inner bevel is positioned at flange plate one side, and the minor face of described inner bevel is 2.5～3.6mm;
The exterior angle of described web and two flange plate junctions is a fillet, and round radius is 3～5mm;
The reinforced rib interior angle of described web and reinforced rib junction is a filleted corner.
2 a kind of J type gantry-shaped steel of forklift according to claim 1 is characterized in that,
Each lateral location of described web, a pair of flange plate and reinforced rib is closed and is:
(1) lateral surface of described web is parallel with the medial surface of web, and parallel with the bottom side on the described a pair of edge of a wing;
(2) lateral surface of described web is parallel and straight with described reinforced rib top side face;
(3) described reinforced rib right flank is parallel with two lateral surfaces of two flange plates;
(4) two lateral surfaces of the lateral surface of described web and described two flange plates are orthogonal, and with to add described strong muscle right flank vertical;
(5) two of described two flange plates medial surface gradients or angular error symmetry.
3 a kind of J type gantry-shaped steel of forklift according to claim 1 is characterized in that,
The filleted corner of described web and two flange plate junctions is arranged on the transition position of described inner bevel and web and/or the transition position of inner bevel and flange plate; And described fillet radius is 5mm; The fillet radius of described web and reinforced rib junction is 5mm.
4 a kind of J type gantry-shaped steel of forklift according to claim 1 and 2 is characterized in that,
The length of described gantry-shaped steel of forklift cross-sectional plane is at 100～205mm;
Described reinforced rib is arranged near on the web outside face of a flank listrium; The thickness of the flange plate of the described reinforced rib far-end of distance is more than or equal to the thickness of the flange plate of reinforced rib near-end, and thickness difference is not more than 0.3～0.4mm.
5 a kind of J type gantry-shaped steel of forklift according to claim 4 is characterized in that,
The length of described gantry-shaped steel of forklift cross-sectional plane is 148mm, and spends at 89 degree～91 at the interior angle of the junction of described web and two flange plates formation, and outer angular radius is less than 5mm;
Transition position at described inner bevel and flange plate is provided with filleted corner, and its radius is 5mm;
Angular radius is 5mm in the reinforced rib of described web and reinforced rib junction.
6 a kind of J type gantry-shaped steel of forklift according to claim 4 is characterized in that,
The length of described gantry-shaped steel of forklift cross-sectional plane is 160mm, and spends at 89 degree～91 at the interior angle of the junction of described web and two flange plates formation, and outer angular radius is 3～5mm;
Be provided with filleted corner at the transition position of described inner bevel and web and inner bevel and flange plate transition position, its radius is 5mm;
Angular radius is 5mm in the reinforced rib of described web and reinforced rib junction.
7 a kind of J type gantry-shaped steel of forklift according to claim 1 is characterized in that,
Described shaped steel material superficial hardness is 160～210; The shaped steel sinuousness is 0～1mm for every meter, and total sinuousness is 0～0.3% of a total length; The wavy camber of shaped steel is 0～1mm for every meter; The shaped steel torsion resistance is 0～0.8mm for every meter; Shaped steel surface camber, impression defective continuous length are 0～30mm, and the degree of depth is 0～0.2mm; Shaped steel cold saw cross section perpendicular degree is 0～1mm; The section sag of shaped steel, wavy camber are 0～0.18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201095884U CN201240808Y (en) | 2008-08-01 | 2008-08-01 | J type forklift gantry section steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201095884U CN201240808Y (en) | 2008-08-01 | 2008-08-01 | J type forklift gantry section steel |
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| Publication Number | Publication Date |
|---|---|
| CN201240808Y true CN201240808Y (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201095884U Expired - Lifetime CN201240808Y (en) | 2008-08-01 | 2008-08-01 | J type forklift gantry section steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591812A (en) * | 2018-06-22 | 2018-09-28 | 山东钢铁股份有限公司 | A kind of J-type forklift door frame hot-rolled steel section |
| EP4414316A1 (en) | 2023-02-08 | 2024-08-14 | L.T.E. Lift Truck Equipment S.p.A. | Lift truck upright |
-
2008
- 2008-08-01 CN CNU2008201095884U patent/CN201240808Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591812A (en) * | 2018-06-22 | 2018-09-28 | 山东钢铁股份有限公司 | A kind of J-type forklift door frame hot-rolled steel section |
| EP4414316A1 (en) | 2023-02-08 | 2024-08-14 | L.T.E. Lift Truck Equipment S.p.A. | Lift truck upright |
| WO2024165969A1 (en) * | 2023-02-08 | 2024-08-15 | L.T.E. Lift Truck Equipment S.P.A. | Lift truck upright |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MACHINERY INDUSTRY INSTITUTE ENGINEERING MACHINERY Free format text: FORMER NAME: LEI XIAOWEI |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 102100 East Main Street Beijing city Yanqing County No. 55 Patentee after: PROVING GROUND FOR CONSTRUCTION MACHINERY & REFIT MILITARY VEHICLES OF CAM Address before: 102100 East Main Street Beijing city Yanqing County No. 55 Co-patentee before: Lu Yongchun Patentee before: Lei Xiaowei Co-patentee before: Chen Weiqiang Co-patentee before: Shao Jianrong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |